Night Wizard

Abandoned Island: The Two Swordsmen (1x5)

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Renji is embarrassed when Anzelotte announces he failed his exams over the school intercom, and is subsequently dispatched with the others to recover the Jewel of Fortitude from Andō Kurusu, a Night Wizard and Demon Sword wielder, similar to Renji. However, Andō refuses to give them the jewel, and easily defeats Renji, questioning his rationale for battling. Elis later goes to Andō, giving him snacks and staying with him throughout the day. Andō reveals that Anzelotte once ordered him to finish a mission at the cost of his friend Yū's life. Two Emulators arrive, and when Andō cautions Renji that they are too powerful for him, Renji responds that he will protect Elis as well as save the world. Impressed, Andō gives Renji his sword, and he defeats the two Emulators. Afterwards, Elis retrieves the jewel, and Renji promises to duel Andō when their mission is concluded.